Aah now I see. Using multiple channels to search for signals buried in noise. Like the phase array of antennas used in the WERA radar system: http://www.aslenv.com/WERA.html
Whereas my own desires are based on the Red Pitaya: http://redpitaya.com A lovely bit of kit, if you can spare $500+ and don't mind Yet Another ARM Processor [built into the FPGA chip]... For more modest requirements, this should be do-able as an extension to the Beaglebone series. A quick check of TI's selection table found the ADS4145<http://www.ti.com/product/ads4145>and ADS4245 [1 and 2 channel version, 125M, 14-bit]. Analog Devices have the AD9648-125<http://www.analog.com/en/analog-to-digital-converters/ad-converters/ad9648/products/product.html>, and Linear Technology have the LTC2145-14<http://www.linear.com/product/LTC2145-14>. Feel free to look them up if you're curious about how they work: I consider much of that "magic smoke" As for WHY I want one - primarily, RF signal analysis. 120 Msample/sec lets you grab from DC to 30MHz, with simple filtering. You can also monitor FM bands [88-108MHz] which fall in the 2nd Nyquist sample zone and get "reflected" down to 12 - 32 MHz Oh, and amateur radio and weather satellites, in the band 140 - 150 MHz, can be under sampled at 25 - 30MHz. Not to mention being able to cover 40MHz of bandwidth, such as WiFi, by adding a mixer / downconverter. It's all Software Defined Radio, or "SDR". There are $20 USB dongles, but they lack the frequency range and bandwidth I'm talking about. Regards, -- Alan [SA-Penguin] -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
